You could for example do this by running the following as root (assuming olad is in the plugdev group, which you can check with "groups olad")

+

You could for example do this by running the following as root (assuming olad is in the plugdev group, which you can check with "groups olad"); on later Raspberry Pi builds, this may fail, instead just add the olad user to the gpio group.

<pre>

<pre>

chgrp plugdev /sys/class/gpio/gpio23/direction

chgrp plugdev /sys/class/gpio/gpio23/direction

Line 138:

Line 138:

There are two options, the 'Open DMX' plugin that requires the kernel module and the native FTDI driver.

There are two options, the 'Open DMX' plugin that requires the kernel module and the native FTDI driver.

−

The Open DMX Plugin requires the dmx_usb kernel module, which means it's Linux only. The FTDI driver can be used on either Mac or Linux.

+

The Open DMX Plugin requires the dmx_usb kernel module, which means it's Linux only. The FTDI driver can be used on either Mac or Linux. See [https://www.openlighting.org/ola/get-help/ola-faq/#What_is_the_difference_between_the_different_USB_plugins here] for more info.

+

+

If you're having issues with the device failing to transmit DMX, these links might help:

Navigate to "RDM Controller" in the menu. Then press <LEFT> and <RIGHT> together, then also press <YES/Q>, then release <YES/Q>, finally release <LEFT> and <RIGHT>. It will then show USB DONGLE MODE and be discoverable in OLA.

ArtNet

If you've having problems sending ArtNet data is may be because your receivers don't support ArtNet II and/or send ArtPollReply messages. You can force OLA to always broadcast data by changing ~/.ola/ola-artnet.conf to contain:

always_broadcast = true

Streaming ACN / E1.31

All Platforms

Some older networking gear only supports an old revision of E1.31 Called Revision 20. To use this older version you need to change a line in ola-e131.conf. Change this line

revision = 0.46

to this line

revision = 0.2

Only do this if the older gear cannot accept the standardized version of E1.31.

Linux

If you are planning to receive large amounts of multicast traffic 20+, you will need to adjust the maximum amount of igmp memberships.
Use the following command:

For example this command sets the maximum number of igmp memberships to 256:

echo 256 | sudo tee /proc/sys/net/ipv4/igmp_max_memberships

Eurolite USB DMX512 PRO

Linux

Sometime the cdc_acm kernel module claims the device. If this happens you'll see errors like "Cannot claim device" and/or "another process has device opened for exclusive access". To avoid this you can remove the module (rmmod). A udev rule like what is used for the Anyma device should also work.

You may also need the following udev rule like this in /etc/udev/rules.d/10-local.rules

Mac

General Purpose I/O

This has only been tested on a Raspberry Pi device. You can find information about the GPIO features on a Pi at elinux.org

Linux

You'll need to export the GPIO pins. For example, to use pin 23, as root run:

$ echo 23 > /sys/class/gpio/export

You'll also need to ensure that the user olad runs as has permission to change the level of the Pins. Each of the following files should be writeable:

/sys/class/gpio/gpio23/direction
/sys/class/gpio/gpio23/value

You could for example do this by running the following as root (assuming olad is in the plugdev group, which you can check with "groups olad"); on later Raspberry Pi builds, this may fail, instead just add the olad user to the gpio group.

DMXter4 RDM and MiniDMXter 4

Navigate to "RDM Controller" in the menu. Then press <LEFT> and <RIGHT> together, then also press <YES/Q>, then release <YES/Q>, finally release <LEFT> and <RIGHT>. It will then show USB DONGLE MODE and be discoverable in OLA.

USBDMX2

Linux

There is an issue where the device isn't detected correctly the first time. You may need to restart OLA once the DMX Transmit led comes on.

Mac

There is an issue where the device isn't detected correctly the first time. You may need to restart OLA once the DMX Transmit led comes on.

Velleman VM166 / K8062

Mac

If you're installed from source you'll need the codeless KEXT which is available for OS X 10.9 and above or OS 10.8 and below. If you installed OLA from the mac binary package this is already included.

Some people have reported issues with the K8062 on Ubuntu 14.04.
Symptoms: When you plug in your K8062, Ubuntu responds with Kernel Panic.
Problem: comedi and vmk60xx kernel modules are loaded and crash the kernel.
Solution: WARNING! Attempt at your own risk.